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Urinary diversion surgeries are procedures that are becoming more frequent, as their indications are not only neoplastic, being useful also in managing other diseases. Due to this increase, it is not uncommon to observe secondary complications, whether in the early postoperative period (less than 30 days after sur- gery) or later (more than 30 days). Within these are alterations in intestinal motility (paralytic ileus, blockage), anastomotic leaks, fluid collections (lymphocele, urinoma, abscess), fistulas, parastomal herniation, ureteral obstruction, urolithiasis and tumor recurrence. Given the large number of surgical techniques used in the- se procedures, it is important to know the resulting anatomical changes, occasionally difficult to evaluate. Multidetector computed tomography (MDCT) is of great use in the study of these patients, especially with multiplanar reconstruction techniques, adequately representing the affected urinary and extra-urinary structures, and their relationship to adjacent structures, enabling their accurate and quick identification. Keywords: Cystectomy, Multidetector computed tomography, Postoperative complications, Urinary diversion. Resumen: Las cirugias de derivacion urinaria son procedimientos que cada vez son mas frecuentes, ya que sus indicaciones no son solo neoplasicas, siendo tambien utiles en el manejo de otras patologias. Debido a este incremento, no es infrecuente observar complicaciones secundarias, ya sean en el postoperatorio temprano (menos de 30 dias despues de la cirugia) o tardio (mas de 30 dias). Dentro de estas tenemos alteraciones de la motilidad intestinal (ileo paralitico, obstruccion), fugas anastomoticas, colecciones liquidas (linfocele, urinoma, absceso), fistulas, herniacion paraestomal, estenosis ureterales, litiasis y recurrencia tumoral. Dada la gran cantidad de tecnicas quirurgicas usadas en estos procedimientos, es importante conocer los cambios anatomicos resultantes, ocasionalmente de dificil valoracion. La tomografia computarizada multidetector (TCMD) tiene gran utilidad en el estudio de estos pacientes, especialmente mediante las tecnicas de reconstruccion multiplanar, representando adecuadamente las estructuras urinarias y extraurinarias afectadas, y sus relaciones con estructuras adyacentes, permitiendo identificarlas acertada y rapidamente. Palabras Clave: Cistectomia, Complicaciones postquirurgicas, Derivacion urinaria, Tomografia computarizada multidetector.

Utilidad de la tomografía computarizada multidetector en la evaluación postoperatoria de cirugías de derivación urinaria